Machine for separating metal sheets.



No. 757,453. PATBNTED APR. 19, 1904. 'G. GROVE. MACHINE FOR SEPARATING METAL SHEETS. APPLIOATION FILED AUG.14, 1903. N0 MODEL. 7 3 SHEgTS-SH-EET-l.

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Wit eases No. 751,453. PATENTED APR.19',1904.

G. GROVE.

MACHINE FOR SEPARATING METAL SHEETS.

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.UNITED STATES Patented April 19, 1904.

PATENT O FICE.

GEORGE GROVE, OF CUMBERLANDrMARYLAND.

MACHINE-FOR SEPARATING METAL SHEETS.

SPECIFICATION forming part of Letters Patent No. 757,453, dated April 19, 1904. l

Application filed August 14, 1903. Serial No. 169,527. (No model.)

To a. whom, it may concerm Be it known that-I, GEORGE GROVE, a citizen of the United States, residing at (Dumberland, in the county of Allegany and State of Maryland, have invented certain new and useful Improvements in Machines for Separating Metal Sheets, of which the following is a spec1- signed more particularly to be employed in pile is then reheated and rolled until each thickness or layer is reduced to the required gage. The pile thus, formed is neXt cut or sheared to the, size required for the finished plates or sheets, after which the pile is ready for opening or separating. According to the method usually adopted the sheets or plates of a pile which had become adherent, although not actually welded together in the process of rolling, were split up or opened and torn apart or separated by hand; but latterly machinery has been devised for effecting this separation as, for example, av pair of corrugated rolls, between which the pile of plates is passed, which has theeifect of bending them to and fro in a waved or corrugated form, and thereby more or less separating them, after which they are rolled out flat, and the separation is thus completed.

. The object of the'present invention is to pro: Vide a simple and comparatively inexpensive machine by means of which the plates may.

be efliciently separated, which machine is unlikely to get out of order, while the surface of the plates will not be injured by theseparating operation, and in order that the invention may be more clearly understood and readily carried into efl ect I will proceed, inconnection with the accompanying drawings, to more fully describe the same.

In the drawings, Figure 1 is a view of the machine in front elevation, the feed-table being omitted. Fig. 2 is a view of the same in side. elevation looking at the left-hand side. Fig.3 is a similar view looking at the righthand side. taken on a plane cutting longitudinally through the rolls, the ends being broken away and the inclosed electromagnets being shown in elevatlonm F1g. 5 1s a vertlcal transverse sectional view through the rolls on the plane indicated by the broken line 5 5 ofFig. 4.. Fig. 6 is a diagrammatic view illustrating the.

:relative positions of the electromagnets, the

magnets being represented as turned to face the discharge or rear side of. the machine. Fig. 7 is a detail view of one of the magnetlevers; 7

Like reference characterswmark the'same parts whereverthey occur in the various figures of the drawings. rg Referring specifically to the drawings, 1 and 2 indicate housingsof any approved form, in which are mounted to rotate two hollowrolls 3 and 4, preferably. of I bronze, the journals 5 and 6 of. the: nollscbeing also hollow and mounted in a vertical slot 7 .in.the-.housings,.the

'60 Fig. 4: is a vertical sectional view I upper rolljnormally resting .u'ponthe' lower 13, 14, 15, and 16 indicate electromagnets mounted in the roll 3, and 17, 18, 19, and 20 are similar magnets mounted in the roll 4 upon supports 21 and 22, respectively, arranged longitudinally in the rolls 3 and 4 and secured to or formed with the shaft ends 25 and 26 in the journals of roll 3 and shaft ends 27 and 28 in the journals of roll 4, the shaft ends 25 and 27 projecting beyond the housings and journals and carrying at their outer ends handle-levers 29 and 30, respectively, each of which is provided with a pawl, as at 31, Fig. 7, adapted to be engaged with curved racks 32 33, secured to the housings, whereby the electromagnets and their supports may be rotated in the rolls and fixed at any suitable position therein for thepurposes hereinafter explained. The winding-wires 34 of the electromagnets leading from any suitable source of electricity pass through a controller 35 of any approved construction, whereby the strength of the magnets may be suitably regulated. The magnets are placed on the supports 21 and 22,with spaces between adjacent magnets preferably slightly wider than the opposite magnets, andthe magnets 13, 14, 15, and 16 in roll 3are placed opposite the spaces between the magnets 17 18, 19, and 20 of roll 4, being staggered in position for the purpose of locating the respective magnets as far as possibleout of the magnetic fields of the magnets in the opposite roll. The magnets are also preferably arranged indifferent radial positions with reference to the rolls, the mag net 16 being in advance in roll 3 and the magnets 15, 14, and 13 being graduated in position in the rear thereof, while in roll4 the magnet 17 which is at the opposite end of the rolls from magnet 16, is in advance, and the magnets 18, 19, and 20 each follow in graduated positions in'rear of the magnet 17. This arrangement still further removes the magnets of each roll out of the magnetic field of the magnets of the opposite roll, so that there will be as littlewaste of magnetic. power in the operation of the machine as possible. The rolls are geared together, as shown at 35vand 36 in Fig. 1, while the lower roll may be rotated by any power applied to shaft 37.

At 38 I have shown a feed-table of any ordinary construction, from which the pile or pack 39 of adhering sheets are fed between the rolls 3 and 4, (see Fig. 5,) in which the top and bottom sheets 40 and 41 of the pack are shown partly separated from the remainder, the forward left-hand corner of sheet 40 being first raised by the action of magnet 16 and the forward righthand corner of sheet 41 being first lowered by the action of magnet 17, the other magnets acting successively upon the sheets 40 and 41 to continue to raise and lower them, respectively, until when the pack has passed through the rolls thetop and bottom sheets will be entirely separated from the remainder of the pack, which remainder is again entered from table 38 and passed between the rolls, another sheet being separated from the top and bottom of the pack at each pass until the whole pack is separated, the separations taking place gradually in diagonal directions due to the arrangement of the magnets hereinbefore described.

While I have described the separation of the single top and bottom sheets from the pack at each pass, in practice this order is not always observed. In some packs the top or bottom sheet adheres more firmly than some other sheets of the pack adhere together and as the separation will always occur between those sheets which have the least adherence the pack will sometimes be separated into two smaller packs, each of which will be passed through the rolls until the sheets are all separated.

Having thus fully described my invention,

what I claim as new, and desire to secure by 7 Letters Patent of the United States, is

1. The combination of a series of magnets spaced apart with an opposite series also spaced apart, the spaces of one series being opposite the magnets of the other series, and means for feeding a pack of metal sheets between the series, substantially as described.

2. The combination of a series of magnets arranged at different angles with an opposite series also arranged at different angles, and means for feeding a pack of metal sheets between the series, substantially as described.

, 3. The combination of a series of magnets arranged in different radial planes about an axial line, with a second series arranged in different radial planes about an axial line parallel to that of the first series, and means for feeding a pack of metal sheets between the series, substantially as described.

4. The combination of a series of magnets spaced apart and arranged about an axialline in different radial planes, with a second series of magnets also spaced apart and arranged in different radial planes about an axial line parallel'with that of the first series, the spaces of one series being opposite to the magnets of the other series, and means for feedinga pack of metal sheets between the two series, substantially as described.

,5. The combination with two hollow, parallel rolls, of magnets inside of each roll arranged in different planes transverse to the axis to act in directions outward from the line of contact of the rolls, substantially as de-,.; scribed.

6. The 00 nbination withtwo hollow, parallel rolls, of a series of magnets spaced apart in each roll with the magnets of one series opposite the spaces of the other, both series act ing in directions outward from the line'of contact of the rolls, substantially as described.

7 The combination with two hollow, parallel rolls, of a series of magnets spaced apart in each roll with the magnets of one series opposite the spaces of the other, both series act- I0 ing in directions outward from the line of con tact of the rolls, and each magnet of each series being arranged in a difierent radial plane from the adjacent magnet, substantially as described.

In testimony whereof I affix my signature in I5 presence of two witnesses.

GEORGE GROVE. Witnesses:

OHAs. H. WALFoRD, JOHN G. MILLER. 

